Privacy Policy

Last Updated: 2025-11-23

Contact: nine.yang.coding@gmail.com

1. Introduction

Thank you for using our mobile application (“the App”). This Privacy Policy explains how we collect, use, and protect your information. Our App focuses on magnetic field measurement, metal detection, and sensor-based utilities. We are committed to protecting your privacy and ensuring transparency.

2. Information We Do Not Collect

• No personal identity information
• No location information
• No photos, videos, contacts, or files
• No advertising identifiers unless required with consent
• No sensor data is uploaded or stored remotely

3. Information We May Collect

3.1 Device Information

Such as device model, OS version, and app version.

3.2 Optional Error Logs

Anonymous crash logs may be collected through Apple or Google services.

3.3 Email Support

If you contact us at nine.yang.coding@gmail.com, we receive your email solely for support.

4. How We Use Information

• Improving app performance
• Bug fixing and optimization
• Responding to support requests

5. Sensor Data & Permissions

We may access device motion and magnetic sensors to provide metal detection, XYZ magnetic field values, and orientation measurements — all processed locally.

6. Third-Party Services

We may use Apple/Google services or anonymous crash analytics.

7. Data Retention

No personal data is stored. Anonymous logs may be retained temporarily for debugging.

8. Children’s Privacy

We do not knowingly collect data from children under 13.

9. International Users

The App is accessible globally. Data (if any) is handled per applicable laws.

10. Security

We apply reasonable measures to protect information. No method is 100% secure.

11. Changes to This Policy

We may update this Privacy Policy. Continued use of the App means you accept updates.

12. Contact Us

Email: nine.yang.coding@gmail.com